DIAMOND TRUCKING INC
USDOT 491637MC-Docket MC240905PHOENIX, AZ
Do not tenderHazmat-authorized76 power units
DIAMOND TRUCKING INC (USDOT 491637) in PHOENIX, AZ — carries a hard disqualifier. FMCSA authority, fleet size, BASIC safety measures, crash and inspection history.
- Has active operating authority that's tenderable today (common or contract).
- Authority revocation is currently pending — carrier may lose operating authority soon.
- Not under an uncleared federal out-of-service or safety action.
- BIPD on file: $5,000,000.
- Cargo insurance on file.
- 1 prior insurance lapse(s) on record, most recent began 1995-07-27 — the carrier let required coverage lapse before.
- Satisfactory safety rating.
- No BASIC alerts in any of the five public SMS categories.
- Driver and vehicle out-of-service rates are at or below the national roadside average.
- 5 preventable crash(es) in the last 24 months; recordable crash rate not available.
- No fatal crashes in the last 24 months.
- No link to a prior revoked authority.
- Authority involuntarily revoked 10 times, most recent 2024-05-20 — recurring instability (typically insurance-lapse / reinstate cycles).
- FMCSA compliance review on file dated 2008-09-30 (C).
- Crash Indicator and Hazmat Compliance BASICs are statutorily withheld from public SMS under the FAST Act — their absence is not a clean record; use the crash-risk signals above instead. The Hazmat Compliance BASIC is also withheld for this hazmat carrier.
Built from FMCSA's public Safety Management System data — guidance, not legal advice. Verify directly with the carrier and your cargo policy before tendering.
Authority
- Common authority
- Not applicable
- Contract authority
- Active
Safety & BASIC scorecard
BASIC safety measures
Unsafe driving
No alert
measure 0.67
Hours of service
No alert
measure 0.04
Driver fitness
No alert
measure 0
Controlled substance
No alert
measure 0
Vehicle maintenance
No alert
measure 0.78
Under the FAST Act, FMCSA publishes an absolute per-category measure (not a 0–100 percentile) for these five BASICs — the alert flag, not the raw number, is the risk signal. The Crash Indicator and Hazmat Compliance BASICs are statutorily withheld from public view.
Last 24 months
0
Fatalities
2
Injuries
6
Crashes
154
Inspections
2
OOS inspections
2
OOS violations
Insurance
- BIPD on file
- $5,000,000
- Cargo insurance
- Yes
- Bond on file
- No
Fleet
- Power units
- 76
- Total drivers
- 81
- Years in business
- 34
- Hazmat authority
- Yes
Crash risk
- Preventable crashes (24 mo)
- 5 of 6 total crash(es)
- Recordable crash rate
- Not available
- Driver OOS rate
- 0%
- Vehicle OOS rate
- 1.3%
The official Crash Indicator BASIC is withheld from public SMS under the FAST Act — these derived signals stand in for it; their absence is not a clean record.
Compliance & history
- Reincarnation / chameleon
- No prior revoked authority
- Involuntary revocations
- 10 times last 2024-05-20
- Physical address
- No address flags
- Federal OOS / safety action
- None on file
- MCS-150 self-report
- 2026-01-14
- Insurance lapse history
- 1 lapse(s) most recent 1995-07-27
- Last compliance review
- 2008-09-30 · C
Inspection history (all-time)
246
Inspections
3
OOS inspections
81
Violations
3
OOS violations
2
Post-accident
Record spans 2023-06-12 → 2026-05-19.
Crash history (last 24 months)
2025-06-28
AZ
Tow-away
2025-05-04
AZ
Tow-away
2024-09-22
AZ
Tow-away
2024-09-05
AZ
Tow-away
2024-08-24
AZ
Tow-away
2024-06-25
AZ
2 injuredTow-away
2024-06-14
AZ
1 injuredTow-away
Violation pattern (all-time, by area)
| Area (49 CFR part) | Violations | Out of service | Most recent |
|---|---|---|---|
Vehicle parts & maintenance 393
|
30 | 1 | 2026-02-20 |
Unsafe driving 392
|
21 | 0 | 2026-02-25 |
Hours of service 395
|
7 | 0 | 2025-10-16 |
Vehicle inspection & repair 396
|
5 | 0 | 2026-03-21 |
Hazardous materials (HMR) 172
|
4 | 0 | 2026-02-05 |
Hazardous materials (HMR) 180
|
3 | 0 | 2025-06-11 |
Driver qualifications 391
|
1 | 1 | 2023-10-04 |
Hazardous materials (HMR) 107
|
1 | 0 | 2024-07-01 |
Hazardous materials (HMR) 178
|
1 | 0 | 2025-05-14 |
Recent violations (last 24 months, worst first)
| Date | Category | Violation | OOS |
|---|---|---|---|
| 2026-03-21 | Vehicle Maintenance | Brake - Leak from air chamber | — |
| 2026-02-25 | Unsafe Driving | State/Local Laws - Failure to maintain lane | — |
| 2026-02-20 | Vehicle Maintenance | Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1 1998 | — |
| 2026-02-11 | Vehicle Maintenance | Air Brake - Audible air leak at a proper connection | — |
| 2026-02-11 | Vehicle Maintenance | Brake - Audible air leak from a brake chamber | — |
| 2026-02-10 | Vehicle Maintenance | Tires - All others leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS | OOS |
| 2026-02-10 | Vehicle Maintenance | Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1 1998 | — |
| 2026-02-10 | Vehicle Maintenance | Frame - Cracked/loose/sagging/broken frame or chassis | — |
| 2026-02-08 | Unsafe Driving | Lane Restriction violation | — |
| 2026-02-05 | Hazardous Materials Compliance | HM (Placarding) - Failure to maintain placard(s) in a condition so that the format legibility color and visibility of th | — |
| 2026-02-05 | Vehicle Maintenance | Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1 1998 | — |
| 2026-02-05 | Vehicle Maintenance | Emergency Equipment - Fire Extinguishers - unsecured | — |
| 2026-01-26 | Vehicle Maintenance | Conspicuity Systems - Truck tractor lower rear retro reflective sheeting missing on vehicle manufactured on or after Jul | — |
| 2025-11-24 | Vehicle Maintenance | Brake Out of Adjustment - Roto Clamp (Short & Long) DD-3 or Bolt | — |
| 2025-11-24 | Vehicle Maintenance | Air Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate | — |
| 2025-10-24 | Vehicle Maintenance | Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1 1998 | — |
| 2025-10-16 | Hours-of-Service Compliance | HOS (ELD) - Driver failing to manually input or verify shipping document number. | — |
| 2025-10-03 | Vehicle Maintenance | Operating a CMV without documentation of a periodic inspection | — |
| 2025-09-24 | Unsafe Driving | Failing to use seat belt while operating a CMV | — |
| 2025-09-23 | Hours-of-Service Compliance | HOS (ELD) - Driver failing to review records and certify the accuracy of the information. | — |
| 2025-08-11 | Vehicle Maintenance | Lighting - Backup lamp inoperative | — |
| 2025-06-20 | Vehicle Maintenance | Frame - Cracked/loose/sagging/broken frame or chassis | — |
| 2025-06-11 | Hazardous Materials Compliance | HM (Testing) - Failing to properly mark cargo tank test dates as required | — |
| 2025-06-11 | Vehicle Maintenance | Conspicuity Systems - Truck tractor upper rear retro reflective sheeting missing on vehicle manufactured on or after Jul | — |
| 2025-06-05 | Hazardous Materials Compliance | HM (Testing) - Failing to properly mark cargo tank test dates as required | — |
| 2025-05-14 | Hazardous Materials Compliance | HM (Packaging) - DOT 406/407/412 supports and anchoring requirements. | — |
| 2025-05-14 | Vehicle Maintenance | Lubrication - Oil or grease leak | — |
| 2025-02-15 | Hazardous Materials Compliance | HM (Markings) - Failing to mark a manual remote shut-off device as required | — |
| 2025-02-10 | Vehicle Maintenance | Frame - Cab or body mounts loose/broken/missing | — |
| 2025-01-03 | Hazardous Materials Compliance | Accepting/transporting HM not prepared in accordance with the regulations. Package has identifiable (without the use of | OOS |
| 2024-12-15 | Hazardous Materials Compliance | HM (Placarding) - Upon visual examination a color on a placard must fall within the color tolerances displayed on the ap | — |
| 2024-12-15 | Vehicle Maintenance | Operating a CMV without documentation of a periodic inspection | — |
| 2024-11-29 | Vehicle Maintenance | Air Brake - Audible air leak at a proper connection | — |
| 2024-10-29 | Vehicle Maintenance | Washers - Inoperative washing system. | — |
| 2024-09-30 | Hazardous Materials Compliance | HM (Markings) - Failing to mark a bulk HM package with ID numbers as required. | — |
| 2024-09-19 | Unsafe Driving | State/Local Laws - Lane restriction violation | — |
| 2024-08-06 | Unsafe Driving | Lane Restriction violation | — |
| 2024-08-06 | Vehicle Maintenance | Washers - Inoperative washing system. | — |
| 2024-07-30 | Unsafe Driving | Driver - Failed to use seat belt while operating a CMV | — |
| 2024-07-30 | Hours-of-Service Compliance | HOS (Property) - Driving beyond the 14 hour after coming on duty following 10 consecutive hours off duty during the curr | — |
| 2024-07-01 | Vehicle Maintenance | Conspicuity Systems - Truck tractor upper rear retro reflective sheeting missing on vehicle manufactured on or after Jul | — |
| 2024-07-01 | Hours-of-Service Compliance | HOS (ELD) - In-Vehicle Information - No user's manual for the driver describing how to operate the ELD. (May be electron | — |
| 2024-06-19 | Hazardous Materials Compliance | HM (Testing) - Failing to properly mark cargo tank test dates as required | — |
| 2024-05-09 | Vehicle Maintenance | Air Brake - Hose/tubing damaged or not secured | — |
| 2024-05-09 | Vehicle Maintenance | Frame - Cracked/loose/sagging/broken frame or chassis | — |
| 2024-05-09 | Vehicle Maintenance | Washers - Inoperative washing system. | — |
Recent inspections (with violations, newest first)
Showing the 25 most-recent inspections that had violations. Clean inspections aren't listed here — they're counted in the all-time inspection totals above.
2026-03-21 1 violHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle inspection & repair 396 | 3A1-LC | — | — |
2026-02-25 1 violHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Unsafe driving 392 | 2-SLLML | — | — |
2026-02-20 1 violHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle parts & maintenance 393 | 55E-B | — | — |
2026-02-11 4 violsHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle parts & maintenance 393 | 45D-B | — | — |
| Vehicle inspection & repair 396 | 3A1-BALAC | — | — |
| Vehicle parts & maintenance 393 | 45D-B | — | — |
| Unsafe driving 392 | 2-SLLEWA1 | — | — |
2026-02-10 3 viols· 1 OOS
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle parts & maintenance 393 | 201A-FRCLS | — | — |
| Vehicle parts & maintenance 393 | 55E-B | — | — |
| Vehicle parts & maintenance 393 | 75A3-TAOL | OOS | — |
2026-02-08 1 viol
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Unsafe driving 392 | 2LV | — | — |
2026-02-05 4 violsHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle parts & maintenance 393 | 95A4-EEUS | — | — |
| Unsafe driving 392 | 2-SLLSIV | — | — |
| Hazardous materials (HMR) 172 | 516C6-HMPMC | — | — |
| Vehicle parts & maintenance 393 | 55E-B | — | — |
2026-01-26 1 violHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle parts & maintenance 393 | 11A1-CSLRR | — | — |
2025-11-24 2 violsHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle parts & maintenance 393 | 47E | — | — |
| Vehicle parts & maintenance 393 | 53B-B | — | — |
2025-10-24 1 violHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle parts & maintenance 393 | 55E-B | — | — |
2025-10-16 1 viol
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Hours of service 395 | 24C2III-ELDSDN | — | — |
2025-10-03 1 violHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle inspection & repair 396 | 17C-PI | — | — |
2025-09-24 1 viol
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Unsafe driving 392 | 16 | — | — |
2025-08-11 1 violHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle parts & maintenance 393 | 9A-LBL | — | — |
2025-06-20 1 violHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle parts & maintenance 393 | 201A-FRCLS | — | — |
2025-06-11 2 violsHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Hazardous materials (HMR) 180 | 415-HMTMC | — | — |
| Vehicle parts & maintenance 393 | 11A1-CSURR | — | — |
2025-06-05 1 violHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Hazardous materials (HMR) 180 | 415-HMTMC | — | — |
2025-05-14 2 violsHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Hazardous materials (HMR) 178 | 345-6-HMP | — | — |
| Vehicle inspection & repair 396 | 5B-L | — | — |
2025-02-15 1 violHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Hazardous materials (HMR) 172 | 328D-HMM | — | — |
2025-02-10 1 violHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle parts & maintenance 393 | 201B-FR | — | — |
2024-12-15 2 violsHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle inspection & repair 396 | 17C-PI | — | — |
| Hazardous materials (HMR) 172 | 519D3-HMPMC | — | — |
2024-11-29 1 viol
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle parts & maintenance 393 | 45D-B | — | — |
2024-10-29 1 violHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle parts & maintenance 393 | 78A-WS | — | — |
2024-10-08 1 violHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Unsafe driving 392 | 2 | — | — |
2024-09-30 1 violHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Hazardous materials (HMR) 172 | 302(a) | — | — |
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